#pragma once 

#include <iostream>
#include <string>
#include <cstring>
#include <unordered_map>
#include <strings.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

using namespace std;
class User
{
public:
    User(const string& ip,const uint16_t& port)
        :_ip(ip),_port(port)
    {}
    ~User()
    {}
    string ip(){ return _ip;}
    uint16_t port() { return _port;}
private:
    string _ip;
    uint16_t _port;
};

class OnlineUser
{
public:
    OnlineUser()
    {}
    void addUser(const string& ip,const uint16_t& port) //用户上线
    {
        string id = ip + "-" + to_string(port);
        users.insert(make_pair(id,User(ip,port)));
    }
    void delUser(const string& ip,const uint16_t& port)//用户下线
    {
        string id = ip + "-" + to_string(port);
        users.erase(id);
    }
    bool isOnline(const string& ip,const uint16_t& port)    //用户是否存在
    {
        string id = ip + "-" + to_string(port);
        return users.find(id) == users.end() ? false:true;
    }
    //给线长上所有用户转发消息
    void broadcastMessage(int sockfd,const string& ip,const uint16_t& port, const string& message)
    {
        for(auto& user:users)
        {
            struct sockaddr_in client;
            bzero(&client,sizeof(client));

            client.sin_family = AF_INET;
            client.sin_port = htons(user.second.port());
            client.sin_addr.s_addr = inet_addr(user.second.ip().c_str());
            string s = ip +"-" + to_string(port) + "# ";
            s += message;
            sendto(sockfd,s.c_str(),s.size(),0,(struct sockaddr*)&client,sizeof(client));

        }
    }
    ~OnlineUser()
    {}
private:
    unordered_map<string,User> users;
};